>> reporter: a strong defense that did not satisfy senator john mccain. >> why do we care? because if the classified information had been included, it gives an entirely different version of events. >> reporter: like mccain, there were some republicans who hillary clinton did not convince. but this was certainly a memorable way to close out her tenure, george. >> and a memorable day, today, coming up, martha. the ban on women in combat going to be formally lifted by leon panetta. it will be a big part of his legacy. but it's something that's being pushed hard by the military, the joint chiefs of staff. >> reporter: it was the joint chiefs, the marine, the army and other services. it reflects the reality of the last decade of war. well more than 100 women have died in iraq and afghanistan, where the front lines have blurred. it does take it to a new level. they could officially be part of infantry units and special forces, if they meet the physical standard. >> that means more women in top leadership positions in the military, as well. >> reporter: that's what it could mean.